administrative backstopping是什么意思 administrative backstopping在线中文翻译

administrative backstopping是什么意思，administrative backstopping在线翻译，administrative backstopping中文意思，administrative backstopping的中文翻译，administrative backstopping发音，administrative backstopping例句，administrative backstopping词组短语，administrative backstopping怎么翻译，单词administrative backstopping的意思